20.7
07/29/1986
RPI 823
Progress at the INPI
- Filing03/21/77
- Publication
- Examination
- Allowance
- Grant09/27/83
- Expired07/27/93
The letters patent expired on 07/27/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 07/29/1986. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
IND ARTEFATOS METAIS JA LTD
Inventors
C. A. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
09/27/1983
RPI 675
Notificação para pagamento de retribuição
#13.1
05/17/1983
RPI 656
110
01/25/1983
RPI 640
120
07/13/1982
RPI 612
Recurso
#12.1
02/09/1982
RPI 590
Carta-patente expirada
#21.1
07/27/1993
RPI 1182
Pedido de licença compulsória
#20.1
02/06/1990
RPI 1005
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